1122112 - MixCloud player does not work in Firefox for Android

Status: RESOLVED WORKSFORME

(Web Compatibility :: Site Reports, defect)

Description

[Aaron Train [:aaronmt]]

Currently on MixCloud, their player does not seem to work in Firefox for Android.

To replicate, attempt to play

http://www.mixcloud.com/JodyWisternoff/intensified-on-frisky-radio-jan-2015/

Player: https://media-mix.netdna-ssl.com/media/js2/mobile_web_js.2c80a98008edba2047c5dbc0e7e38cb4.js

Possible feature detection failure? e.g,

return e.navigatorType && e.navigatorType("audio/mpeg").replace(/no/, "") && e.navigatorType('audio/mp4; codecs="mp4a.40.2"').replace(/no/, "")

--
Nightly (01/15)
Motorola Nexus 6 (Android 5.0.1)

Comment 1

[Hallvord R. M. Steen [:hallvors]]

That quoted code is called from 

        T.playerType = 'html5',
        T.hasFormatSupport = o.test('audio')

Right now, in Firefox on desktop canPlayType("audio/mpeg") returns maybe. canPlayType("audio/mp4; codecs='mp4a.40.2'") returns probably. Same on the Flame, but playback fails (on desktop and device).

Comment 2

[Hallvord R. M. Steen [:hallvors]]

The page uses web sockets. I'm not quite sure why it uses web sockets, but I note that we never seem to run the onopen callback, and that setting a breakpoint in the onopen callback makes BlinkOpera hang in a similar state to what Firefox does:

e.onopen = function() {
   clearTimeout(t), t = null, o.start(), s.isConnected = s.hasConnected = !0, u()
}

Some connection problem with the web socket?

Comment 3

[Hallvord R. M. Steen [:hallvors]]

I note that some of their pages have mixed content problems:

Mixed Content: The page at 'https://m.mixcloud.com/magnatune/2015-01-17-bach-podcast-from-magnatune/' was loaded over HTTPS, but requested an insecure video 'http://throttle.magnatune.com/podcasts/mp3/magnatune_bach_podcast_2015_01_17.mp3'. This content should also be served over HTTPS.
2(index):1 Mixed Content: The page at 'https://m.mixcloud.com/magnatune/2015-01-17-bach-podcast-from-magnatune/' was loaded over HTTPS, but requested an insecure video 'http://throttle.magnatune.com/podcasts/mp3/magnatune_bach_podcast_2015_01_17.mp3'. This content should also be served over HTTPS.

Comment 4

[Hallvord R. M. Steen [:hallvors]]

(It might be easier to debug this if we had bug 1103257 and bug 1103263 fixed in devtools to be able to review WebSocket traffic)

Comment 5

[Hallvord R. M. Steen [:hallvors]]

Fails because MP3 playback is unsupported.

Comment 6

[Hallvord R. M. Steen [:hallvors]]

Hm, that's not it. Fennec plays other mp3-files OK.

Comment 7

[Hallvord R. M. Steen [:hallvors]]

Works fine for me now in Nightly on Android (although all links here are now dead, so go to "Discover" and pick something that's fresh)